Acessory Musces of Respiration

Question 1

Serratus posterior superior (origin)

Answer 1

ligamentum nuchae, spinous processes C7 to T3

Question 2

Serratus posterior superior (insertion)

Answer 2

superir aspects of ribs 2-4

Question 3

Serratus posterior superior (action)

Answer 3

elevation of ribs

Question 4

Serratus posterior superior (innervation)

Answer 4

ventral rami

Question 5

Serratus posterior superior (blood supply)

Answer 5

posterior intercostal arteries

Question 6

Serratus posterior inferior (origin)

Answer 6

spinous process of T11 -L2

Question 7

Serratus posterior inferior (insertion)

Answer 7

inferior aspect of ribs 9-12

Question 8

Serratus posterior inferior (action)

Answer 8

depresses ribs

Question 9

Serratus posterior inferior (innervation)

Answer 9

ventral rami

Question 10

Serratus posterior inferior (blood supply)

Answer 10

posterior intercostal arteries

Question 11

Levators costarum (origin)

Answer 11

transverse processes of C7 to T11

Question 12

Levators costarum (insertion)

Answer 12

corresponding ribs at superior border, between and at the tubercle

Question 13

Levators costarum (action)

Answer 13

assist with deep inspiration

Question 14

Levators costarum (innervation)

Answer 14

dorsal rami

Question 15

Levators costarum (blood supply)

Answer 15

posterior intercostal arteries

Question 16

Pectoralis minor (origin)

Answer 16

ribs 3-5

Question 17

Pectoralis minor (insertion)

Answer 17

corocoid process of scapula

Question 18

Pectoralis minor (action)

Answer 18

depression of shoulder, downward rotation of scapula

Question 19

Pectoralis minor (innervation)

Answer 19

medial pectoral nerve

Question 20

Pectoralis minor (blood supply)

Answer 20

pectoral branch of thoracoacromial and intercostal lateral thoracic artery